Weighing scale



FIG. 1 is a top plan, front and right side perspective view of aweighing scale showing my new design;

FIG. 2 is a top plan view;

FIG. 3 is a bottom plan view;

FIG. 4 is a right side elevational view, the left side being a mirrorimage;

FIG. 5 is a front elevational view; and

FIG. 6 is a rear elevational view thereof.

The ornamental design for a weighing scale, as shown and described.